Cultivator attachment



' May 19, 1925'.

ATTORNEY w 1 .t nl, w .n 5, 1. e e h S 2 @y M 2% M9 H1 NC A. OTG T OAh. HRM Coa SuM .Vd y l vHTM. mi CF l l Il. IJHILI,

May 19, 1925.

H. SCHOON CULTIVATOR ATTACHMENT Filed March e, 1922 2 Sheets-Sheet 2 ATTO RN EY Patented May 19, 1925.

UNITED STATES PATENT OFFICE.A

HARLEY seHooN, or. eLAsFoRD, ILLINOIS.

CULTIVATOR ATTACHMENT.

Application filed March, 1922. Serial No. 541,524.

This invention relates to an attachment 'for cultivators, and an object ot the invention is to provide an attachment for single or multiple row cultivators by means of which the corn or produce may be uncovered by a simple movement of the hand of the operator of the machine.

In cultivating relatively young corn, cane, or analogous agricultural produce the soil turned by the cultivating sho-vels 'frequently covers the produce and unless itis uncovered the produce either dies or grows crooked, its growth being stunted, and it is the present practice of operators of cultivators to uncover the corn withthe foot as he passes it, which takes time, is unsatisfactory in many respects, oft-en resulting in the breaking off the tender plant and at best resulting in incomplete uncovering` of the plant.

The present invention comprehends the provision of a device which may be attached to any type of cultivator and `includes a rake structure normally held out of operative position which may be easily moved into operative position to uncover a plant i by a slight movement of the hand of the operator of the cultivator, and also to provide a device which is constructed to provide a break joint to permit it to move over roots, stones or analogous foreign articles without bending or breaking the attachment.

@ther objects of the invention will appear in the following detailed description and in the accompanying drawing wherein:

Fig. 1 is a side elevation ot the improved attachment used in connection with a one row cultivator.

Fig. 2 is a rear elevation oit the improved cultivator attachment.

Fig. 3 is a detail section through the attachment illustrating its manner of connection to a cultivator.

Fig. l is a detail vertical cross section through the rake head of the attachment.

Fig. 5 is a top plan of a modiiied form of the invention as used on a multiple row cultivator.

Fig. 6 is a section on the line 6 6 ot Fig. 5.

Fig. 7 is a vertical section through the modified form of cultivator attachment on line 7-7 of Fig. 5.

Referring more particularly to the drawings thel improved cultivator attachment comprises a rod 1 which is curved to provide a substantially7 U shaped portion 2 on one end of which a vertically extending handle 3 is mounted. The bar 1 may be composed of two sections connected by means et a coupling 4 if it is so desired, and it is pivotally connected to a cultivator structure A by means of a clamp 5. The clamp 5 includes the mea-ns 6 for attaching it to the cultivator and a rod carrying` member 7,*which is pivotally supported by the supporting member 8 and which receives the rod 1 therethrough. A set screw 9 is carried by the member 7 for clamping the rod 1 in adjusted positions relative to the bracket 5 and consequently to the cultivator structure which limits the throw of the rod 1. A head structure 10 is carried by the end of the rod 1 remote from the handle 3 and it comprises a back 11 to which a tooth carrying rod 12 is pivotally connected by means of trunnion bolts 18. The teeth 14 which are carried bythe rod 12, are preferably U shaped being removably inserted through the rod and held in place therein by means of a clamping plateI 15 attached'ifto the rod 12 by suitable clamping bolts 16' and engaging the bight portions of the teeth 14 for securely holding them in position relative to the head 12. The teeth 14s are spaced one from the other snflicient distance to permit them to uncover or remove the soil from relatively young plants without rnpturing or breaking the plants. i

Break springs 17 are provided which have one of their ends connected to the back 11 while the other ends arecconnected to the rod 12. The break springs 17 normally hold the teeth 11i in substantially vertical position but will permit them to rock together with the rod ,12 in case any of the teeth strike a root, rock or other obstruction in their path, to prevent breaking of the teeth.

A contractile spiral spring 18 is connected to the rod 1 intermediate its pivot and the head 10, which spring is also connected to tion` ywith' the couplings 27.

the culti'vato'r, iniany'suitable position. The

spring 18 normally holds the head 10 upf Wardly out of operative position and during the travel of the cultivator 'A vWhen a young" plant is covered by the soil turned byk the cultivator the operator merely rocks the rod l by means of the-handle 3- tor--movef the head l0 downwardly so that the teeth llu'illremove the soil romthe plant.

In Figs. 5 to 7 inclusive of the drawinga 1 modified form of the invention isy shown which form- A1s 'adapted' for use on multiple roW cultvators and comprises an: attaching i' bar 220 Which@y isattached' l.by means of "suitable" clamp'- structures V 213 to `the 'cultiva-tor f frame as shownindottedf lineat B. The at-r taching bar 201 has an attaching .bracketY structure '22vr attached thereto which, is similar to-thebrac'ket structure fand p`1.Votall yV supports the operatingrod v23` upon@ onei Thel endI of ivhiclr the-handle 2 4 is. mounted. operatinggrod 231s connected bymea'ns of a Tcoupling,25` to a cross rod 26, the ends of which are externally threaded; T couplings" 27 areadjustably mounted upon the threaded ends of'k theY rod -26 and they 'have a headv` structureconnected. f thereto 'similarV to *the 5 head zstructureslt;

head: structures are notv sh'oWn inthat the head2*strwztures 10 4may" be used, the only'- change being necessaryV is' that a coupling' In Figures 5 to- 7 theholds the-'cross bar 26 upwardly out' of oper ative position, the latter being moved downwardly into operative position by means of the handl'ef24 andf'aga'inst the tension of the spring 28. The clip 2-9 may 'be adjusted along the 'rod 26 to regulate the point of connection,A between the spring 28 and rod 26 and the attaching clamp 22 may also be adjusted longitudinally of the attaching :bar:`

20 as desired, .Whilerthe rod123 may be adjusted-longitudinally Vto.vary its tulcruin formedby its pivotal conneetionivitlr the bracket 22.

From fthe foregoing- ,description taken in connection with the accompanying drawing it will beapparent thatA a cultivatorattachment vhas been provided -Which is adaptable for'. attachmentto any conventional typeI of cultivatorI and one by meansof which young growingplants may be uncovered With accuracy and' Without liability of injuryto the plants.

It is, ofcourse, to be'understood-that the invention may'beconstructed in various otherr'manners and. the, parts associated in different.relationsa11d-,` therefore, I do not desireto be limited i1rany-manner except as set forth; in the claim, hereunto appended;-

f Havingsthus described my invention what I .claim 1s:

Amplantuncovering attachment for cultivatorsfcomprisingvan a-ttachingbar, an operating-rod connected ?tl1ereto,-a.cross rod at-` tached to. onecndfof sardoperatmg.-rod,

couplings;carried byfsaid,..cross rod, rake heads carried by said .couplings and including. inverted vU.-.shaped backs-g tooth carrying.

rods rockably'carried'by said backs, inverted U`4slntped teethk carried by said rods, and pressure plates adjustably connected to said' rods and pressing against the bight portions of sai-d! teeth to. hold `them in place.

In testimony whereof I ajiijfr my signature.

HARLEY iSCHONf 

